package com.atguigu.springcloud.config;

import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

import java.util.Date;

/**
 * @author 孙志鹏
 * @createDate 2022/4/7 21:43
 */
@Slf4j
@Component
public class MyLogGatewayFilter implements GlobalFilter, Ordered {

    /**
     *
     * @param exchange
     * @param chain
     * @return Mono有点ModelAndView的意思
     */
    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        log.info("*************come in MyLogGatewayFilter: " + new Date());
        String uname = exchange.getRequest().getQueryParams().getFirst("uname");
        if (uname == null) {
            log.info("*************用户名为null, 非法用户, (ㄒoㄒ)");
            exchange.getResponse().setStatusCode(HttpStatus.NOT_ACCEPTABLE);
            return exchange.getResponse().setComplete();
        }
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
